/Engine/Source/Runtime/CoreUObject/Public/UObject/Linker.h
Return if two resources share the same outermost
true if they share an outer
bool DoResourcesShareOutermost ( [FPackageIndex](API\Runtime\CoreUObject\UObject\FPackageIndex) LinkerIndexLHS, [FPackageIndex](API\Runtime\CoreUObject\UObject\FPackageIndex) LinkerIndexRHS ) const